Shuttle for looms.



Patented spn13,191

lI. sNow s; G. sTma'Buws.` SHUTTLE ron Looms. l

PPLIUATIOI FILED JUKE 17. 1909.

wwonm. M

lemma. M

Y renee, in the county of Essex and `Stale of ISAAC SNOW AND GEORGEsTUBBiNGs, lor: LAWRENCE, MAssAHUsE'TTsf y kSHUTTLE .FOR'LOOM To allwhom 'it may concerto: v L v Beit. known that we. Isaac SNow, a citi-vzen ofthe United States, residing at Law illassachusetis, and Gnoien:S-'iiinsixns subjectoi the. Kingr of Great Britain, residing at. saidLawrence. have invented new and useful lliiiproreiiieiits .in Shuttlesfor Y Looiiis, of which the following is a. specitivl() cation. i u

This invention relates to shuttles of the class in which tl'ii'eadingdevices are prov2do 'vided which connect with the thread-hole or eye,and the invention relates speciticall)` to an improvedY thread guidevwhere-b) the thread is kept ou its `wayY through a passage leading tothe eye without looping, ,"ftoating, or breaking.

The nature 'ol'.tlieinvention is fullyy de scribed in detail below, andillustrated in p the accompanying drawings, in \\liich:-- f

Figure t is a plan view of the end of a shuttle in which the eye and ourimproved lf'ig. is front view of the saine. Fig. 3 is ahorizontal see-*ion taken on line 3 3, Fig. 2. Fig. 4 is a perspective view of thethreading device or guide removed. Figs. 5 and 6 are sections taken onlines 5 5, and 6-6, Fig. 4, respectively. Y

Similar letters of reference indicate f forresponding parts. 1

a represents the front wall and b the hea-'l of a shuttle provided withour invention.

c is the bohhiii sustained by a suitable spindle el, and e is the threadextending from said bobbiii throughy the thread-guide,

' as illustrated part icularly in Fig. 3.

is a horizontal passage extending through the head of theshuttle,solisten-- tially round in cross section, f/ is a curvedvertical cut; constituting a narrow passage leading down to thehorizontal passage f. andy i. is a narrow horizontal passageor cnt.extending from the passage y along t'he head of the shuttle and leadingto said passage f. The thread-guide is a metallic.

structure .consisting` of a plate or .sheet ot'- metal the iuain portionor hai-rel of which is cylindrical and circular and adapted to titsnugly in the passage f and providedwith reversely formed and disposedteeth below described, a series of narrow necks extending from andmaking a part of the outer ends of one of the sets of teeth and radiaiwith the barrel, and a flat longitudinal and by said necks at a distancetroni the line ol circumference of the niain portion of theY barrel,whereby longitudinal spaces j are produced next the outer set ,of teeth.the said rib extending into a corresponding cut fronirotat-ing in thepassage.

lThe barrel or body portion lc iofrtlie adjacent eiidof the spindle.This opening` or port p is curved at its inner end to prevent catchingand cutting the thread, and extends from the barrel or iiiain portion L'through the rib n, its uiouth q opening into both the passages y and k.7

At .sone or more substantially triangular substantially radial raisedrib n'su-pported fUNl'lEDf S' ATES "Pi-EEST oFiiiCEaj-f '.vor groove'iiiin the, head of the shuttle for 1 E the purpose of preventing thethread-guide y openings are inade in the barrel l' whereby teeth ii areformed. the central tooth .w lie- ;m. ....i...+....i :..ii.. ..i.... 1..i. i [i ni; :Hohmann-iii). n itmguiai iii hiiupt. :Uitl tnd outer ones,that is, that next the notch p and that next the outer end of thebarrel. being' 'partially triangular.` The ends of these teeth lu` donot come to ay .point hut are torined with the integral extensions ornecks 1 which are bent up radially with the barrel and .support at.their outer ends the raised rib nr above described. .said rib, necks andteeth uf being integral. and the teeth w heing on true circles andcorresponding with the shape of the rest of the main portion The edge tof the barrel extends to the ioo.

rel itself is in contact with the smooth wall of the passage f, theouter surfaces of the teeth are ground awa)7 from the line ofk the outersiii-face of the barrel (Fig. 5i. andV the edges of the triangular teethil aie'- ground away for tliepiirpose of leaving narrow spaces betweensaid teeth and the adp #tient edges of the lnain as illustrated in Figs:3 and 4. Thus by `means of the ground outer surfaces of the i teeth uand the position of their edges with `of the teeth 1x and the edges ofthe teeth w into the bari' l ln praetie in threading theshuttle thethread islaidfor inserted .in the passage ff fat any Convenient pointand isdrawn into Said paage and under the corner n into the passage li.and as`both ot these p;is; ages lead to the port )fthe thread entersthis` port, and a.-;'it1 eannot. pass over the/rib i., which tit enugl)-in the head nor between the :nain or eireular portion ofthe barrel andthe v,il of tl ge f, (the barrel tit'ting snugly in aid pas. i ge) 1tpasses below Said'raib-ed rib and by ine-ans of the spaces i' orertheouter fanrtaees ofthe rear portions of the teeth .1i

yend otl the barrel and under the teeth te, guidedr hy said neek i, andthen over the ground portxon v of` the vvsurt'aees ot the teeth u.passingthrough the portion ol' barrel Il',`vr

spares between 'the edges` ot the teeth u, and

those ot' the teeth w over the points or end: ot' the teeth 'u into thebarrel, as; illustrated in Fig. 3, and thence out through the outer atthe eye .1/ ot' the shuttle, as shown in Figs. :2 and 3. By means ol'the ground outer surfaces of the teeth u, although the. inner Surtat-.esare on a true eirele, and li v"n'iea1is ot the Spaces j produced by theradial neelts whit-h hold the ribs l v awa)r from the main portion orbarrel,r the this course it is eonrse of the thread is down through thepassage y,` horizontally along the passage 1'1, into the port p,

under the rib u and through `the spaces j, and theuee over the teeth uand under the teeth w and the teeth u into the the thread-eye.

around the points of barrel and out through "hile the thread is taltingpraetieallv in a straight line from the port p to the eye, asillustrated in 5i". 3, andit is etieetually preventet'l bv the necks z'whieh raise the rib and prtiduee ample space between it and the broadends of the teeth w, and by the'ground outer surfares of Said teeth u\\'hertb vr space is produced between the teeth 'u and the wall of thepassage l',v from catching and breaking. although the v the adjaeent.edges of the Sethl of teeth '1t and .':f are narrow. The edge of thebarrel is eut away at i" opposite the port 7) in order to aid 'inguiding the thread under the first at any point tooth tr and over thefirst tooth u.

spares between yover the teeth Haring thus fully described ourinvention, what we einhu, and desire to secure by Letters Patent, is:m

1. In a Shuttle of the eltaraeter desfribed having a transverse eirenlarpasilfage ron neeted with the interior ot' the Shuttle and extendingthrough the head tothe outer `\u' r` face and a passage extending frontSaul transverse pasaafft: to the upper snrl'at'e ot the head, atln'eateguide etiunn'ising a barret eirrular in crore. Section andfitting:r in said eirtular paasage, .said barretta-ingl provided with aport openingV into The interior of the shuttle and registering with theinner end of the passage' which extends to the einer surface of thehead: arid said barrel being further provided with two 'evtbraelv't'ruanlvl and disposed sets o't'vteetlu'ihe teeth in one 'eet being'provided at their outer end A with substautiall \Y radial extern-ione,or neelts sul porting and integral with a raied rib .vherebylongitudinal spaees or 4tun-ning are. formed between said raiiaed riband tfno peripher)` ot', the barrel, and the teeth in the` other getextendiuginto 1.---iehe5 between'. the

yteeth in the tirst named eet and rorresgionflA ing approximately inshape to said notehes and being' l'ornied on their ima-r eurtaeea nl, atrue eir eorresliotn-ling with theeirole of the inner lurtare ofthrbarreltalnl having sev their outer yniraeera ground dou n toward theeinlS of the teeth whereby Said. Surfates iw ward the ends ol' the teeth:tre tot-ated within and at a tlihtanee vfrom the line 'ii' the outer.snrtaee oi' the barrel but outside the. line of the inner Suri'ate ofthe barrel; for the purpose of providing spaett'or the passage. o. thethread between said rib and the barret Surfaees into the interior of thebarret and under the teeth which are ignovided with VSaid neelts forupporting the rib.

2. shuttlel thread-guide Comprising a barrel eirenlar in eros seetionand adapted to be plat-ed in a eorz'respttidingly shaped paswig'e inthe' head of '.t slntttle. provided with a passage extending' from theeireular.

pa. :\ge to the exterior of the head, Said barrel beingr provided with aport adapted to eonneet with both otsaid passages, and said barrelbeingf further provided with two revel-rely formed and disposed sets ofteeth, the. teeth in one set beine' provided at their outer ends withsubstantiallv radial extensions or neeks supporting and integral with araised rib whereby longitudirnll spaces or openings are formed betweensaid raised rib provided with the ground and the periphery of thebari-eh and the.

teeth inthe other set extending into notehea` between the teeth in thefirst named set and Corresponding approximately in Sha pe. to saidnotches and being formed on their inner snrfaee on a true eirelecorresponding with the eirele of the inner surf-aee of the barrel andhaving their outer surfaces ground down toward the ends 0f the methwhereby 'said4 surfaces toward (he ends uf the teeth :m: located withinundr af :i hsmnce from the outside the hm: of lhe inner surface of thehurx'ei'; fm' the pluposeof providing pneu dbf-the. passage of (hf`Ihre-ml lfxeveenY said rib and the barrel over the teeth provided withthe ground Surfzwes into the interim' 10 of 'Lhe barrel und under theteeth which ure I provided '-"th Suid necks fer supporting the line ufthe outer sn-i'fnve of the-barrel but :mines to this specification inthe pr two subscribing witnehses.

In testimonywhereof we have signed mn' MLSAC SNOW'.

GEORGE STUBBINGS.

"it-nesses': l

Joux XV. Dun-Y JUsr-:Pn Slnsc'rt'n v @sence ofk

